Versa Rack is the ultimate in plastic rack and pinion. With backlash less than 3.2 um and positional accuracy of ± 500 or 580 um depending on pinion selection. The Value pinion is ideal for use with the Versa rack giving the lowest cost system or higher performance can be obtained with any of the premium pinions. Versa rack is great in dirty environments, clean rooms, or food/pharmaceutical production since it can operate without lubrication.